*{
    margin: 0;
    padding: 0;
    list-style: none;
    padding: 0;
    text-decoration: none;
}
input[type='text']{
    height: 30px;
    line-height: 30px;
    padding-left: 5px;
}
.title {
    width: 1200px;
    display: flex;
    justify-content: space-around;
    margin:100px auto;
}
.title i {
    width: 24px;
    height: 24px;
    line-height: 24px;
    text-align: center;
    background-color: #777;
    display: inline-block;
    font-style: normal;
    border-radius: 50%;
    color: #fff;
    margin-right: 5px;
}
.title span.active i{
    background-color: orange;
}
.box{
    text-align: center;
}
.box .input-item{
    margin-bottom: 10px;
}
.box button{
    font-size: 16px;
    padding:3px 10px;
}